Biology Exam Past Questions and Answers | JAMB, WAEC and NECO

Biology is the study of life and living things. It can be divided into different areas that look at the structure, function, anatomy, and behavior of organisms.

• Question 1451: An onion bulb stores its food in the Options:
  A) Stem
  B) Leaves
  C) Roots
  D) Cotyledon
  E) Branches
  Show Answer
  The correct answer is B .
• Question 1452: Which of the following characterizes a mature plant cell? Options:
  A) the nucleus is pushed to the centre of the cell
  B) the cell wall is made up of cellulose
  C) the nucleus is small and irregular in shape
  D) the cytoplasm fills up the entire cell space
  Show Answer
  The correct answer is B .
• Question 1453: Which of the following organisms has lost the pentadactyl limb structure? Options:
  A) Bat
  B) Fish
  C) Frog
  D) Pigeon
  Show Answer
  The correct answer is C .
• Question 1454: Urea formation occurs in the Options:
  A) heart
  B) liver
  C) lung
  D) kidney
  Show Answer
  The correct answer is B .
• Question 1455: Carbon monoxide poisons tissue by Options:
  A) constricting the blood vessels
  B) killing the cells
  C) combining with haemoglobin
  D) rupturing the blood vessels
  Show Answer
  The correct answer is C .
• Question 1456:

  Which of the following is an example of a microorganism in action as a disease vector?

  Options:
  A) Fungi decomposing dead plant material
  B) Mosquito transmitting malaria
  C) Bacteria causing food poisoning
  D) Algae producing oxygen through photosynthesis
  Show Answer
  The correct answer is B .
• Question 1457: What is the function of the contractile vacuole in paramecium? Options:
  A) Produces enzymes
  B) Gets rid of excreta
  C) Stores and digest food
  D) Gets rid of excess water
  E) Controls movement
  Show Answer
  The correct answer is D .
• Question 1458:

  The correct pathway for blood flow from the heart to the tissues of mammals is?

  Options:
  A) heart-arteriole-artery-tissues
  B) heart-artery-arteriole-tissues
  C) heart-vein-venule-tissues
  D) heart-venule-vein-tissues
  Show Answer
  The correct answer is B .
• Question 1459: A food web is more stable than a food chain because Options:
  A) it contains more organisms
  B) it has greater energy source
  C) it is not easy to destroy
  D) every organism has an alternative source
  Show Answer
  The correct answer is D .
• Question 1460: During the bending of the arm, the biceps muscles Options:
  A) contracts and the triceps muscles relaxes
  B) relaxes and the triceps muscles contracts
  C) and the triceps muscles contract
  D) and the triceps muscles relax
  Show Answer
  The correct answer is A .